EP1746382A3 - Measurement instrument - Google Patents

Measurement instrument Download PDF

Info

Publication number
EP1746382A3
EP1746382A3 EP06015163A EP06015163A EP1746382A3 EP 1746382 A3 EP1746382 A3 EP 1746382A3 EP 06015163 A EP06015163 A EP 06015163A EP 06015163 A EP06015163 A EP 06015163A EP 1746382 A3 EP1746382 A3 EP 1746382A3
Authority
EP
European Patent Office
Prior art keywords
spindle
phase signal
rotation angle
signal
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06015163A
Other languages
German (de)
French (fr)
Other versions
EP1746382A2 (en
EP1746382B1 (en
Inventor
Shuuji Hayashida
Shozaburo Tsuji
Yuji c/o Mitutoyo Corporation Fujikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitutoyo Corp
Original Assignee
Mitutoyo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2005213298A priority Critical patent/JP4732050B2/en
Application filed by Mitutoyo Corp filed Critical Mitutoyo Corp
Publication of EP1746382A2 publication Critical patent/EP1746382A2/en
Publication of EP1746382A3 publication Critical patent/EP1746382A3/en
Application granted granted Critical
Publication of EP1746382B1 publication Critical patent/EP1746382B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/18Micrometers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/204Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
    • G01D5/2086Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by movement of two or more coils with respect to two or more other coils

Abstract

A measuring instrument has a phase signal transmitter (400) that transmits, in accordance with a rotation of the spindle (300), a phase signal that differs corresponding to the rotation angle of the spindle (300), and an arithmetic processor (500) that arithmetically processes the phase signal to obtain the absolute position of the spindle. The phase signal transmitter transmits the phase signal at a predetermined pitch. Since the phase signal differs corresponding to the rotation angle of the spindle (300), a rotation angle of the spindle (300) is uniquely determined by the phase signal. Unlike an increment type measuring instrument, since there is no concern that the signal will be skip-read, the spindle (300) can be rotated at high speed, so that operational performance of the micrometer (100) can be improved. Further, since there is no concern that the signal will be skip-read, the phase signal can be minutely varied with respect to the rotation of the spindle (300).
EP20060015163 2005-07-22 2006-07-20 Measurement instrument Active EP1746382B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005213298A JP4732050B2 (en) 2005-07-22 2005-07-22 Measuring instrument

Publications (3)

Publication Number Publication Date
EP1746382A2 EP1746382A2 (en) 2007-01-24
EP1746382A3 true EP1746382A3 (en) 2012-04-04
EP1746382B1 EP1746382B1 (en) 2013-09-04

Family

ID=37434368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060015163 Active EP1746382B1 (en) 2005-07-22 2006-07-20 Measurement instrument

Country Status (4)

Country Link
US (1) US7321231B2 (en)
EP (1) EP1746382B1 (en)
JP (1) JP4732050B2 (en)
CN (1) CN100582645C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4825697B2 (en) * 2007-01-25 2011-11-30 株式会社ミツトヨ Digital displacement measuring instrument
JP5085362B2 (en) * 2008-02-06 2012-11-28 株式会社ミツトヨ Absolute position measuring device
JP5265982B2 (en) * 2008-07-29 2013-08-14 株式会社ミツトヨ Digital displacement measuring instrument
US8307528B2 (en) * 2009-10-05 2012-11-13 Sonnax Industries, Inc. Low clearance machined part mating system
JP5540308B2 (en) * 2009-10-16 2014-07-02 株式会社ミツトヨ Rotary encoder
JP2014002080A (en) * 2012-06-20 2014-01-09 Alps Electric Co Ltd Rotary input apparatus
EP2746730B1 (en) * 2012-12-21 2015-11-18 SICK STEGMANN GmbH Drive system with an angle encoder
JP6239824B2 (en) * 2013-01-18 2017-11-29 株式会社ミツトヨ Inductive detection type rotary encoder
CN104567580A (en) * 2014-11-28 2015-04-29 华瑞电器股份有限公司 Measurement device and measurement method of contact piece of commutator
CN105547091B (en) * 2015-12-18 2018-05-22 中国地质大学(武汉) The calibration detection method and system of a kind of spindle drill hook position
US20190293401A1 (en) * 2016-11-07 2019-09-26 Dai-Ichi Sokuhan Works Co. Threaded-hole inspection device
CN108225162A (en) * 2016-12-13 2018-06-29 大银微系统股份有限公司 Absolute position sensing reading head arrangement
KR102115525B1 (en) * 2018-09-14 2020-05-26 삼성전기주식회사 Apparatus for sesnsing rotating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536963A (en) * 1983-08-29 1985-08-27 Mitutoyo Mfg. Co., Ltd. Digital indication type measuring machine
EP1324000A1 (en) * 2001-12-28 2003-07-02 Mitutoyo Corporation measuring device
EP1327862A2 (en) * 2002-01-11 2003-07-16 Mitutoyo Corporation Absolute position measuring device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4980260U (en) 1972-10-28 1974-07-11
JPS4980260A (en) 1972-12-07 1974-08-02
JPS54130152A (en) 1978-03-31 1979-10-09 Sony Corp Micrometer
JPS61111409A (en) * 1984-11-05 1986-05-29 Mitsutoyo Mfg Co Ltd Encoder-built-in measuring unit
JP3623038B2 (en) * 1996-02-26 2005-02-23 株式会社ミツトヨ Micrometer
JP3256443B2 (en) * 1996-09-20 2002-02-12 株式会社ミツトヨ Capacitive displacement measuring device
US6329813B1 (en) * 1998-12-17 2001-12-11 Mitutoyo Corporation Reduced offset high accuracy induced current absolute position transducer
JP3724995B2 (en) 1999-11-10 2005-12-07 株式会社ミツトヨ Micrometer
JP4520722B2 (en) * 2002-12-10 2010-08-11 株式会社ミツトヨ Rotary motion conversion mechanism and measuring machine
EP1515112B1 (en) * 2003-06-09 2013-03-27 Mitutoyo Corporation Measuring instrument
DE102004006672B3 (en) * 2004-02-11 2005-08-18 Carl Mahr Holding Gmbh Fine gauge for distance measurement
JP4690028B2 (en) * 2004-12-17 2011-06-01 株式会社ミツトヨ Caliper type micrometer
JP4533165B2 (en) * 2005-01-28 2010-09-01 株式会社ミツトヨ Absolute position measuring device
JP2007033084A (en) * 2005-07-22 2007-02-08 Mitsutoyo Corp Measurement instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4536963A (en) * 1983-08-29 1985-08-27 Mitutoyo Mfg. Co., Ltd. Digital indication type measuring machine
EP1324000A1 (en) * 2001-12-28 2003-07-02 Mitutoyo Corporation measuring device
EP1327862A2 (en) * 2002-01-11 2003-07-16 Mitutoyo Corporation Absolute position measuring device

Also Published As

Publication number Publication date
CN100582645C (en) 2010-01-20
EP1746382B1 (en) 2013-09-04
JP2007033083A (en) 2007-02-08
EP1746382A2 (en) 2007-01-24
US7321231B2 (en) 2008-01-22
US20070018658A1 (en) 2007-01-25
CN1900649A (en) 2007-01-24
JP4732050B2 (en) 2011-07-27

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Inventor name: HAYASHIDA, SHUUJI

Inventor name: FUJIKAWA, YUJI C/O MITUTOYO CORPORATION

Inventor name: TSUJI, SHOZABURO

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